171856215

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1$

素因数の和:625

約数の個数: 64

約数和(自身を含む): 318729600

約数和(自身を除く): 146873385

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 61, 123, 135, 183, 205, 305, 369, 509, 549, 615, 915, 1107, 1527, 1647, 1845, 2501, 2545, 2745, 4581, 5535, 7503, 7635, 8235, 12505, 13743, 20869, 22509, 22905, 31049, 37515, 62607, 67527, 68715, 93147, 104345, 112545, 155245, 187821, 279441, 313035, 337635, 465735, 563463, 838323, 939105, 1273009, 1397205, 2817315, 3819027, 4191615, 6365045, 11457081, 19095135, 34371243, 57285405, 171856215]

約数ペア:

[(1, 171856215), (3, 57285405), (5, 34371243), (9, 19095135), (15, 11457081), (27, 6365045), (41, 4191615), (45, 3819027), (61, 2817315), (123, 1397205), (135, 1273009), (183, 939105), (205, 838323), (305, 563463), (369, 465735), (509, 337635), (549, 313035), (615, 279441), (915, 187821), (1107, 155245), (1527, 112545), (1647, 104345), (1845, 93147), (2501, 68715), (2545, 67527), (2745, 62607), (4581, 37515), (5535, 31049), (7503, 22905), (7635, 22509), (8235, 20869), (12505, 13743)]